As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LANDING GEAR SELECTED DOWN IN FLIGHT THERE WAS NO MOVEMENT OF THE LANDING GEAR AND THE LANDING GEAR INOP CAUTION LIGHT ILLUMINATED AFTER SEVERAL SECONDS. ALTERNATE EXTENSION COMPLETED SUCCESSFULLY. WHEN ALTERNATE EXTENSION WAS COMPLETED THE NORMAL LANDING GEAR UNSAFE AND GEAR DOWN INDICATIONS DID NOT ILLUMINATE. THE ALTERNATE GEAR DOWN INDICATIONS FUNCTIONED PROPERLY. THE LANDING WAS COMPLETED WITH NO FURTHER ISSUES. LANDING GEAR CONTROL PANEL WAS REPLACED, GEAR SWINGS COMPLETED, AND NO FURTHER ISSUES.